I just found this long exposure tutorial by Scott Kelby and it’s very good!! Scott goes over the critical information you need to know to get the best results possible. He also offers several tricks of the trade 
Tutorials
September 30, 2011
Long exposure tutorial with Scott Kelby
- Canon EF 135mm f/2 L USM Lens – Hands On Review
- Adobe Lightroom 3 and Photoshop CS5 HDR Pro Workflow
- Lightroom 3: Droplets – Launching Photoshop Actions from Lightroom using Droplets
- Portrait Lenses – Which one is the best??
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- Sony Alpha 55 – Hands on Review
- Macro Lens Shootout!! Canon EF 100mm f/2.8 L IS Macro vs Canon EF 100mm f/2.8 Macro vs Tamron SP AF 90mm f/2.8 Di Macro
- On Location Studio Photography “Baby Portraiture” – Part 1
- Lightroom 3: Set-up and Importing – Part 1
- Macro Photography – Extension Tubes Explained
- More
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- What’s New in Lightroom 4 – Overview and Impressions
- Chris Orwig – “Find Your Passion” by [FRAMED]
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- Splash Photography Technique – No Flash Needed
- Rebates, Deals, and Discounts you need to know about if your Shopping!!
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- On a Personal Note – Michele and I got Married!!
- Excellent HDR Tutorial by Trey Ratcliff
- More
- "Great review! I ordered this lens just two days ago.. can't wait for it to arrive!" - Sandi Chetwynd
- "Excellent!! Good luck with it and enjoy your Photography!! Best, Jay" - Jay
- "Hello John, I prefer the full frame sensor over the 1.6x sensor, but that is really the only reason. Your..." - Jay
- "Thanks for the in depth review. I currently have the 100mm non-L , and thinking of upgrading to the L for t..." - John Gore
- "I just got this camera this past month for my 50th B-day + Christmas....I LOVE this camera and it has given..." - Lynn Rennert
- "Yeah, with the 60D your pretty good with the 24-70 ;) A little tight on the wide end for my style of shoot..." - Jay
- "ziddibilli, Thanks for the comments and I'm terrible sorry I did not get back to you sooner!! I just mis..." - Jay
Great tutorial!